Chapter 7 HW Flashcards
Ossicles
Three tiny middle ear bones: malleus, incus, and stapes
Tympanic membrane
Waves of air molecules hit the tympanic membrane and cause it to vibrate
Endolymph
Fills the cochlear duct in the middle ear
Bipolar neurons
Found at the base of hair cells in the cochlear duct
Bony labyrinth
Located in the inner ear
Outer ear
Consists of the pinna and auditory canal
Static equilibrium
The kind of equilibrium perceived by the saccule and utricle
Oval window
Located in the beginning of the inner ear, vibrations of the oval window creates waves within the perilymph of the cochlear tube
Lingual papillae
Bumps on the surface of the tongue
Myopia
Cornea and lens focused the image ahead of the retina
Hyperopia
The cornea and lens focused the image behind the retina
Cataract
Progressive, painless, loss or vision due to the clouding of the lens of the eye
Olfaction
Sense of smell
Otitis media
Infection of the middle ear
Swimmers ear (otitis externa)
An infection anywhere in the outer ear
Tactile disks function
Mechanoreceptors for light touch
Middle ear function
To amplify the vibration of the tympanic membrane
Retina rods function
Photoreceptors for non-color vision
Vestibular apparatus function
To perceive equilibrium
Oval window
Membrane at which the stapes contacts the vestibule
Hair cell receptors on the basilar membrane
Mechanoreceptor
Olfactory hair receptors
Chemoreceptor
Vision receptors
Photoreceptor
Ciliary body
Part of the eye that produces aqueous humor
Glaucoma
Ocular disorder results in an increase in intraocular pressure
Fovea centralis
Part of the retina that contains only cones and is the area of sharpest vision
Auditory tube/eustachian tube
Structure that leads from the middle ear to the nasopharynx
Olfactory cell
Bipolar neurons
Mechanoreceptors
Detect pressure, touch, vibration, and stretch
Nociceptors
Pain receptors that detect tissue injury or potential tissue injury
Basal cells
Taste bud cells responsible for replacing cells as they die
Eye protecting structures
Eyebrows, eyelids, and eyelashes
Optic disc
Part of the retina that has no photoreceptors and is therefore considered the blindspot
General senses
Simple receptors in the skin, muscles, joints, tendons, and organs. Located all over the body, detect touch, pressure, stretch, heat, cold, and pain
Special senses
Only located in the head, special sense organs are used for taste, smell, hearing, equilibrium, and vision
Tongue taste concentrations
Sweet in the front, salt and sour on the sides
Presbyopia
A decreased ability to accommodate between near and far vision with aging, resulting in difficulty seeing objects up close
Tinnitus
Persistent abnormal ear noise, commonly experienced in the elderly due to mild hearing loss
Ishihara test
Used to diagnose color blindness
Tonometry
A procedure that measures the pressure inside the eye to diagnose glaucoma
Rinne/Weber test
Procedures in which a tuning fork is used to test for hearing loss